Build the Linksys EA9350 V3 device trees from the arm64 tree together with the ARM32 include to allow booting this device on ARM32.

The approach to include device tree files from other architectures is
inspired from e.g. the Raspberry Pi (bcm2711-rpi-4-b.dts) where this is
used to build the device tree for both ARM32 and ARM64.

Signed-off-by: Karl Chan <exxxxkc@getgoogleoff.me>
---
 arch/arm/boot/dts/qcom/Makefile                         | 1 +
 arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts | 2 ++
 2 files changed, 3 insertions(+)
 create mode 100644 arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts

diff --git a/arch/arm/boot/dts/qcom/Makefile b/arch/arm/boot/dts/qcom/Makefile
index f06c6d425e91..147dbeb30a6a 100644
--- a/arch/arm/boot/dts/qcom/Makefile
+++ b/arch/arm/boot/dts/qcom/Makefile
@@ -23,6 +23,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
 	qcom-ipq4019-ap.dk04.1-c3.dtb \
 	qcom-ipq4019-ap.dk07.1-c1.dtb \
 	qcom-ipq4019-ap.dk07.1-c2.dtb \
+	qcom-ipq5018-linksys-jamaica.dtb \
 	qcom-ipq8064-ap148.dtb \
 	qcom-ipq8064-rb3011.dtb \
 	qcom-msm8226-microsoft-dempsey.dtb \
diff --git a/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts b/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts
new file mode 100644
index 000000000000..9a6ad767ebd7
--- /dev/null
+++ b/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+#include <arm64/qcom/ipq5018-linksys-jamaica.dts>
-- 
2.46.1

On Thu, Oct 03, 2024 at 07:28:04AM GMT, Karl Chan wrote:
> Build the Linksys EA9350 V3 device trees from the arm64 tree together with the ARM32 include to allow booting this device on ARM32.

-ETOOLONG. Please wrap the line at 75 chars per line.

While doing it please also add the reason for the change (32-bit
firmware on the router).

> 
> The approach to include device tree files from other architectures is
> inspired from e.g. the Raspberry Pi (bcm2711-rpi-4-b.dts) where this is
> used to build the device tree for both ARM32 and ARM64.
> 
> Signed-off-by: Karl Chan <exxxxkc@getgoogleoff.me>
> ---
>  arch/arm/boot/dts/qcom/Makefile                         | 1 +
>  arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts | 2 ++
>  2 files changed, 3 insertions(+)
>  create mode 100644 arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts
> 
> diff --git a/arch/arm/boot/dts/qcom/Makefile b/arch/arm/boot/dts/qcom/Makefile
> index f06c6d425e91..147dbeb30a6a 100644
> --- a/arch/arm/boot/dts/qcom/Makefile
> +++ b/arch/arm/boot/dts/qcom/Makefile
> @@ -23,6 +23,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
>  	qcom-ipq4019-ap.dk04.1-c3.dtb \
>  	qcom-ipq4019-ap.dk07.1-c1.dtb \
>  	qcom-ipq4019-ap.dk07.1-c2.dtb \
> +	qcom-ipq5018-linksys-jamaica.dtb \
>  	qcom-ipq8064-ap148.dtb \
>  	qcom-ipq8064-rb3011.dtb \
>  	qcom-msm8226-microsoft-dempsey.dtb \
> diff --git a/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts b/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts
> new file mode 100644
> index 000000000000..9a6ad767ebd7
> --- /dev/null
> +++ b/arch/arm/boot/dts/qcom/qcom-ipq5018-linksys-jamaica.dts
> @@ -0,0 +1,2 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
> +#include <arm64/qcom/ipq5018-linksys-jamaica.dts>
> -- 
> 2.46.1
> 

-- 
With best wishes
Dmitry

On 6.10.2024 10:14 PM, Dmitry Baryshkov wrote:
> On Thu, Oct 03, 2024 at 07:28:04AM GMT, Karl Chan wrote:
>> Build the Linksys EA9350 V3 device trees from the arm64 tree together with the ARM32 include to allow booting this device on ARM32.

+ Kathiravan, Sricharan

Would you folks know anything about it? Do we have an open source
U-Boot release that could be sideloaded as a secondary bootloader to
kick it into 64-bit mode?

Konrad

On 10/26/2024 5:08 PM, Konrad Dybcio wrote:
> Would you folks know anything about it? Do we have an open source
> U-Boot release that could be sideloaded as a secondary bootloader to
> kick it into 64-bit mode

Yes slightly older u-boot release [1] supports booting both 32/64 bit
kernels.

[1] 
https://git.codelinaro.org/clo/qsdk/oss/boot/u-boot-2016/-/tree/win.coretech.1.0?ref_type=heads

Regards,
  Sricharan

On 28.10.2024 7:33 AM, Sricharan Ramabadhran wrote:
> 
> 
> On 10/26/2024 5:08 PM, Konrad Dybcio wrote:
>> Would you folks know anything about it? Do we have an open source
>> U-Boot release that could be sideloaded as a secondary bootloader to
>> kick it into 64-bit mode
> 
> Yes slightly older u-boot release [1] supports booting both 32/64 bit
> kernels.
> 
> [1] https://git.codelinaro.org/clo/qsdk/oss/boot/u-boot-2016/-/tree/win.coretech.1.0?ref_type=heads

Thank you!

Konrad